n = int(input())

if(n>=400 and n<600):print(8)
elif(n>=600 and n<800):print(7)
elif(n>=800 and n<1000):print(6)
elif(n>=1000 and n<1200):print(5)
elif(n>=1200 and n<1400):print(4)
elif(n>=1400 and n<1600):print(3)
elif(n>=1600 and n<1800):print(2)
elif(n>=1800 and n<2000):print(1) n = int(input()) n int(input()) int input() input if(n>=400 and n<600):print(8)
elif(n>=600 and n<800):print(7)
elif(n>=800 and n<1000):print(6)
elif(n>=1000 and n<1200):print(5)
elif(n>=1200 and n<1400):print(4)
elif(n>=1400 and n<1600):print(3)
elif(n>=1600 and n<1800):print(2)
elif(n>=1800 and n<2000):print(1) n>=400 and n<600 n>=400 n 400 n<600 n 600 elif(n>=600 and n<800):print(7) n>=600 and n<800 n>=600 n 600 n<800 n 800 elif(n>=800 and n<1000):print(6) n>=800 and n<1000 n>=800 n 800 n<1000 n 1000 elif(n>=1000 and n<1200):print(5) n>=1000 and n<1200 n>=1000 n 1000 n<1200 n 1200 elif(n>=1200 and n<1400):print(4) n>=1200 and n<1400 n>=1200 n 1200 n<1400 n 1400 elif(n>=1400 and n<1600):print(3) n>=1400 and n<1600 n>=1400 n 1400 n<1600 n 1600 elif(n>=1600 and n<1800):print(2) n>=1600 and n<1800 n>=1600 n 1600 n<1800 n 1800 elif(n>=1800 and n<2000):print(1) n>=1800 and n<2000 n>=1800 n 1800 n<2000 n 2000 n = int(input()) int(input()) n
n = int(input())

if(n>=400 and n<600):print(8)
elif(n>=600 and n<800):print(7)
elif(n>=800 and n<1000):print(6)
elif(n>=1000 and n<1200):print(5)
elif(n>=1200 and n<1400):print(4)
elif(n>=1400 and n<1600):print(3)
elif(n>=1600 and n<1800):print(2)
elif(n>=1800 and n<2000):print(1)
